abstract：:The effect of bacteriophage SPO1 infection of Bacillus subtilis and a deoxyribonucleic acid (DNA) polymerase-deficient (pol(-)) mutant of this microorganism on the synthesis of DNA has been examined. Soon after infection, the incorporation of deoxyribonucleoside triphosphates into acid-insoluble material by cell lysat...

journal_title：Journal of virology

authors： Yehle CO,Ganesan AT

更新日期：1972-02-01 00:00:00

abstract：:The synthesis of closed circular simian virus 40 (SV40) deoxyribonucleic acid (DNA) containing sequences homologous to host cell DNA depends upon the conditions under which the cells are infected. When BS-C-1 monkey cells were infected with non-plaque-purified virus at low multiplicity of infection [MOI, 0.032 plaque-...

journal_title：Journal of virology

authors： Lavi S,Winocour E

更新日期：1972-02-01 00:00:00

abstract：:The relationship between the vaccinia virus hemagglutinin and hemadsorption was examined. Hemagglutinin synthesis was temporally related to the appearance of the hemadsorption reaction. Only chicken erythrocytes, which reacted with hemagglutinin, hemadsorbed to infected cells, and both of these reactions were inhibite...

journal_title：Journal of virology

authors： Blackman KE,Bubel HC

更新日期：1972-02-01 00:00:00

abstract：:Reciprocal three-factor crosses and the use of a partial revertant of a putative ribonucleotide reductase mutant of Escherichia coli B/5 as indicator have made it possible to map denA (deficient in endonuclease II) between nrd-11 (ribonucleotide reductase gene B) and amM69 (gene 63) on the bacteriophage T4 chromosome....

journal_title：Journal of virology

authors： Ray P,Sinha NK,Warner HR,Snustad DP

更新日期：1972-01-01 00:00:00

abstract：:Synthesis of viral ribonucleic acid (RNA) polymerase, maturation protein, and coat protein in Escherichia coli infected with bacteriophage R17 occurs mainly on polysomes containing four or more ribosomes. The 30S ribosomal subunits through trimer-size polysomes, which are associated with all of the R17-specific protei...

journal_title：Journal of virology

authors： Truden JL,Franklin RM

更新日期：1972-01-01 00:00:00

abstract：:In bacterial strains containing the deoxyribonuclease endonuclease I (endonuclease I(+) strains), 70 to 80% of the injected superinfecting T-even phage deoxyribonucleic acid (DNA) is rapidly degraded to oligonucleotides having an average chain length of 8, the same value as that obtained by endonuclease I digestion of...

journal_title：Journal of virology

authors： Anderson CW,Eigner J

更新日期：1971-12-01 00:00:00

abstract：:Growth of phage phi105 and its deoxyribonucleic acid (DNA) was studied in radiation-sensitive mutants of Bacillus subtilis. The recA gene is required for optimal prophage induction with mitomycin C and for infectivity of prophage DNA. rec B gene is required for marker rescue from mature DNA. The importance of bacteria...

journal_title：Journal of virology

authors： Rutberg B,Rutberg L

更新日期：1971-12-01 00:00:00

abstract：:The nucleotide composition of the ribonucleic acid of three strains of rabies virus was determined and found to be similar to that of vesicular stomatitis virus. ...

journal_title：Journal of virology

authors： Aaslestad HG,Urbano C

更新日期：1971-12-01 00:00:00

abstract：:Ribonucleic acid extracted from influenza virus was labeled at the 3' termini with (3)H and analyzed by polyacrylamide gel electrophoresis. Influenza virus was found to contain a minimum of seven and possibly as many as 10 polynucleotide chains, most of which appear to terminate at the 3' end in uridine. ...

journal_title：Journal of virology

authors： Lewandowski LJ,Content J,Leppla SH

更新日期：1971-11-01 00:00:00

abstract：:An in vitro method which led to the transformation of hamster embryo fibroblasts after exposure to herpes simplex virus type 2 (HSV-2) inactivated with ultraviolet irradiation is described. The transformed cells (333-8-9) produced tumors when inoculated into newborn Syrian hamsters but not when injected into weanling ...

journal_title：Journal of virology

authors： Duff R,Rapp F

更新日期：1971-10-01 00:00:00

abstract：:Small amounts of infectious simian virus 40 (SV40) were recovered from parental cultures of SV40-transformed human embryonic lung (WI38 Va13A) cells, from 12 primary clones, from 17 secondary clones, and from 18 tertiary clones. The cloning experiments demonstrated that the capacity for spontaneous virus production is...

journal_title：Journal of virology

authors： Dubbs DR,Kit S

更新日期：1971-10-01 00:00:00

abstract：:The release of the ribonucleic acid (RNA)-containing phage MS2 from Escherichia coli is accompanied by cellular lysis at 37 C, whereas at 30 C phage are released from intact cells. Chloramphenicol or rifampin prevents the release of progeny phage particles at both temperatures. Neither drug causes an immediate cessati...

journal_title：Journal of virology

authors： Engelberg H,Soudry E

更新日期：1971-09-01 00:00:00

abstract：:The deoxyribonucleic acid (DNA) of Escherichia coli B is converted by colicin E2 to products soluble in cold trichloroacetic acid; we show that this DNA degradation (hereafter termed solubilization) is subject to inhibition by infection with bacteriophage T4. At least two modes of inhibition may be differentiated on t...

journal_title：Journal of virology

authors： Swift RL,Wiberg JS

更新日期：1971-09-01 00:00:00

abstract：:Oncornavirus 60 to 70S ribonucleic acids (RNA), such as those from avian myeloblastosis virus, Schmidt-Ruppin virus, or mouse sarcoma-mouse leukemia viruses, isolated by conventional techniques, contain 4S transferlike RNA molecules that are released upon dissociation of the 60 to 70S RNA with heat. The 4S RNA represe...

journal_title：Journal of virology

authors： Erikson E,Erikson RL

更新日期：1971-08-01 00:00:00

abstract：:When human adenovirus type 2 or 12 infects cells, either productively or non-productively, three classes of viral deoxyribonucleic acid (DNA) are found within the cells: (i) viral DNA which cosediments with DNA extracted from infectious adenovirions at 31.3S for adenovirus type 2 and at 29.0S for adenovirus type 12, (...

journal_title：Journal of virology

authors： Burlingham BT,Doerfler W

更新日期：1971-06-01 00:00:00

abstract：:Kilham rat virus (KRV) was grown in a rat nephroma cell line and was purified by two isopycnic centrifugations in cesium chloride. The virus contains single-stranded deoxyribonucleic acid (DNA) with a molecular weight of approximately 1.6 x 10(6). The DNA was extracted from the virion by both phenol extraction and by ...

journal_title：Journal of virology

authors： Salzman LA,White WL,Kakefuda T

更新日期：1971-06-01 00:00:00

abstract：:Extracts of competent cells of Bacillus subtilis exhibited nuclease activity on radioactively labeled cell deoxyribonucleic acid (DNA). The activity was not decreased when Mg was omitted from the reaction mixture but was decreased to zero by addition of ethylenediaminetetraacetic acid. Of the other metals tested, only...

journal_title：Journal of virology

authors： Epstein HT

更新日期：1971-06-01 00:00:00

abstract：:Autoradiographic analyses of deoxyribonucleic acid (DNA) synthesis in randomly growing KB cell cultures infected with equine abortion virus (EAV) suggested that viral DNA synthesis was initiated only at times that coincided with the entry of noninfected control cells into the S phase of the cell cycle. Synchronized cu...

journal_title：Journal of virology

authors： Lawrence WC

更新日期：1971-06-01 00:00:00

abstract：:A nucleotide phosphohydrolase is firmly associated with a purified polyhedral cytoplasmic deoxyvirus, frog virus 3. This adenosine triphosphatase is distinguishable from known mammalian cell adenosine triphosphatases and from adenosine triphosphatase of an unrelated cytoplasmic replicating virus grown in the same host...

journal_title：Journal of virology

authors： Vilagines R,McAuslan BR

更新日期：1971-05-01 00:00:00

abstract：:Heterozygous replicative form molecules of bacteriophage phiX174 deoxyribonucleic acid (DNA) have been constructed in vitro. These are composed of viral strands extracted from purified preparations of phage bearing ts mutations and complementary strands of either half length or full length synthesized with purified DN...

journal_title：Journal of virology

authors： Merriam V,Dumas LB,Sinsheimer RL

更新日期：1971-05-01 00:00:00

abstract：:The addition of 25 mug of protamine sulfate per ml to lysozyme-ethylenediamine-tetraacetic acid spheroplasts of Escherichia coli stimulates transfection not only for T1 phage deoxyribonucleic acid (DNA; Hotz and Mauser, 1969) but also for the following phage DNA species: lambda, 10,000-fold to an efficiency of 10(-3) ...

journal_title：Journal of virology

authors： Benzinger R,Kleber I,Huskey R

更新日期：1971-05-01 00:00:00

abstract：:Purified preparations of human adenovirus type 12 showed two bands when subjected to isopycnic centrifugation in a density gradient of cesium chloride. Their density difference was about 0.003 g/ml, suggesting a small difference in their deoxyribonucleic acid to protein ratio. Virions with a lighter density can kill h...

journal_title：Journal of virology

authors： Mak S

更新日期：1971-04-01 00:00:00

abstract：:It is possible to oxidize in situ the 3'-terminals of the double-stranded ribonucleic acid (RNA) contained in structurally intact cytoplasmic polyhedrosis virus. The number of 3'-terminals subsequently found by reduction with tritiated sodium borohydride was equivalent to the number observed in RNA first isolated from...

journal_title：Journal of virology

authors： Lewandowski LJ,Millward S

更新日期：1971-04-01 00:00:00

abstract：:The nondefective adenovirus 2 (Ad2)-simian virus 40 (SV40) hybrid virus, Ad2(+)ND(1), differs from the defective Ad-SV40 hybrid populations previously described, in that this hybrid virus can replicate without the aid of nonhybrid adenovirus helper. Consequently, the deoxyribonucleic acid (DNA) from this virus, which ...

journal_title：Journal of virology

authors： Crumpacker CS,Henry PH,Kakefuda T,Rowe WP,Levin MJ,Lewis AM Jr

更新日期：1971-03-01 00:00:00

abstract：:A new purification procedure was adopted for Eastern equine encephalitis virus which does not subject the virus to pelleting at any stage. Three- to 4-liter volumes were passed through a diethylaminoethyl cellulose column. The virus-containing fractions were banded on a sucrose cushion and finally concentrated in an i...

journal_title：Journal of virology

authors： Fuscaldo AA,Aaslestad HG,Hoffman EJ

更新日期：1971-02-01 00:00:00

abstract：:The ability of vaccinia virus to replicate in HeLa cells which had been previously infected with adenovirus type 2 (Ad2) was studied in order to gain insight into the mechanism by which adenovirus inhibits the expression of host cell functions. Vaccinia virus was employed in these studies because it replicates in the ...

journal_title：Journal of virology

authors： Giorno R,Kates JR

更新日期：1971-02-01 00:00:00

abstract：:Ribonucleic acid extracted from the virions of two human rhinoviruses is infective and is similar in size to poliovirus ribonucleic acid. ...

journal_title：Journal of virology

authors： Nair CN,Lonberg-Holm KK

更新日期：1971-02-01 00:00:00

abstract：:Purified rabies virions, unlabeled or labeled with radioactive amino acids or d-glucosamine, were dissociated into their polypeptides by treatment with sodium dodecyl sulfate in a reducing environment and fractionated by electroiphoresis in sodium dodecyl sulfate-containing polyacrylamide gel. The molecular weights of...

journal_title：Journal of virology

authors： Sokol F,Stancek D,Koprowski H

更新日期：1971-02-01 00:00:00

abstract：:The polypeptides of three paramyxoviruses (simian virus 5, Newcastle disease virus, and Sendai virus) were separated by polyacrylamide gel electrophoresis. Glycoproteins were identified by the use of radioactive glucosamine as a carbohydrate precursor. The protein patterns reveal similarities among the three viruses. ...

journal_title：Journal of virology

authors： Mountcastle WE,Compans RW,Choppin PW

更新日期：1971-01-01 00:00:00

abstract：:The ultrastructure of CV-1 cells infected with subacute sclerosing panencephalitis (SSPE) viruses was compared with that of CV-1 cells infected with the wild or Edmonston strain of measles virus. Both SSPE viruses and the measles viruses produced two types of nucleocapsid structures: smooth filaments, 15 to 17 nm in d...

journal_title：Journal of virology

authors： Oyanagi S,ter Meulen V,Katz M,Koprowski H

更新日期：1971-01-01 00:00:00

abstract：:A mutant which produces a small-headed ("petite") variant of bacteriophage T4 is described. The mutation (E920g) maps in a new gene (66) between genes 23 and 24. Petite phage particles composed up to 70% of the phage yield. The petite phage was nonviable upon single infection but produced progeny when two or more infe...

journal_title：Journal of virology

authors： Eiserling FA,Geiduschek EP,Epstein RH,Metter EJ

更新日期：1970-12-01 00:00:00

abstract：:By using temperature-sensitive (ts) and suppressor-sensitive (sus) mutants, 11 essential genes have been identified in phage phi105. The order of the genes has been established in two- and three-factor crosses. The genes can be arranged in a linear order; this order is identical in the vegetative phage and in the prop...

journal_title：Journal of virology

authors： Armentrout RW,Rutberg L

更新日期：1970-12-01 00:00:00

abstract：:Infection of primary or secondary cultures of Chinese hamster embryo cells with simian virus 40 at a multiplicity of 20 to 50 induced synthesis of the virus-specific intranuclear T antigen in 80 to 90% of the cells within 48 to 72 hr. In the infected cultures, 30 to 50% more cells were recruited into deoxyribonucleic ...

journal_title：Journal of virology

authors： Lehman JM,Defendi V

更新日期：1970-12-01 00:00:00

abstract：:The structural proteins of mature LPP-1 particles and the patterns of protein synthesis after LPP-1 infection have been examined by electrophoresis on sodium dodecyl sulfate polyacrylamide gels. Structural proteins account for 35% of the LPP-1 genome, and proteins that would require about 65% of the total coding capac...

journal_title：Journal of virology

authors： Sherman LA,Haselkorn R

更新日期：1970-12-01 00:00:00

abstract：:The structural aspects of SH antigen-containing particles were investigated. These studies confirmed the existence of a large spherical particle (ca. 43 nm) and smaller (ca. 20 nm) rod- and sphere-shaped particles. The large particle consists of an outer and inner membrane and a core of "nucleic acid" as seen by posit...

journal_title：Journal of virology

authors： Jokelainen PT,Krohn K,Prince AM,Finlayson ND

更新日期：1970-11-01 00:00:00

abstract：:The effect of guanidine on the replication of the group A arboviruses, Sindbis virus, and Semliki Forest virus (SFV) was studied. Guanidine rapidly, but reversibly, inhibited SFV ribonucleic acid (RNA) synthesis. The synthesis of all species of viral RNA was inhibited, but that of ribonuclease-resistant forms was leas...

journal_title：Journal of virology

authors： Friedman RM

更新日期：1970-11-01 00:00:00

abstract：:The in vitro transcription pattern of simian virus 40 (SV40) deoxyribonucleic acid (DNA) by a mammalian ribonucleic acid (RNA) polymerase, was studied by electron microscopy and velocity sedimentation techniques. It was found that (i) the majority of supercoiled SV40 DNA molecules displayed a single binding site for t...

journal_title：Journal of virology

authors： Herzberg M,Winocour E

更新日期：1970-11-01 00:00:00

abstract：:T-even bacteriophages were grown and purified in bulk quantities. The protein coats were disrupted into their component substructures by treatment with 67% dimethyl sulfoxide (DMSO). Tail fibers and tubes were purified on glycerol-CsCl-D(2)O gradients and examined with respect to sedimentation properties, subunit mole...

journal_title：Journal of virology

authors： Cummings DJ,Kusy AR,Chapman VA,DeLong SS,Stone KR

更新日期：1970-10-01 00:00:00

abstract：:Two species of basic internal proteins were found in osmotic shock supernatant solutions of bacteriophages T4B, T4D, T2H, T2L, and T6. The major species of protein isolated had a molecular weight of approximately 21,000 daltons, whereas the minor protein molecular weight was near 9,500 daltons. The two protein species...

journal_title：Journal of virology

authors： Stone KR,Cummings DJ

更新日期：1970-10-01 00:00:00

abstract：:The intracellular and extracellular localization of pseudorabies virions and subvirion components was determined at various stages in the replicative cycle. It was discovered that infectious pseudorabies virus appears first in the nucleus of the infected cell early in the infectious cycle but later accumulates in the ...

journal_title：Journal of virology

authors： Sydiskis RJ

更新日期：1970-09-01 00:00:00